Question

which of the following electron configurations is not possible for an atom in an excited state?

a.) 1s2 2s2 2p6 3s2 3p6 3d10 4s1 4p1
b.) 1s2 2s2 2p6 3s1 3p5
c.)1s2 2s2 2p6 3s1 3p5
d.) 1s2 2s2 2p6 3s2 3p6 3d10 4s2
e.) 1s2 2s2 2p6 3s2 3p6 3d10 4s14 p3

Answer 1

@f1ftyguns

Answer 2

Think about what makes a normal electron configuration excited. If one of these do not follow the rule, that is the answer. You should be able to do this if you learned this in class. Just wondering, is this for your own studies or for class work?

Answer 3

Its for my own studies and for class work also.
Well I know that some number thingys are skipped but how do I know that they ar eskipped? (if that makes sense)

Answer 4

The problem is, rather than telling you the answer, for your sake and the sake of your grade, you will need to understand this concept. So instead of telling you the answer, I'll give you a link that will explain how a excited state atom looks like. http://science.uvu.edu/ochem/index.php/alphabetical/e-f/excited-state-atom/

Answer 5

Ok, so by looking at it im pretty sure its E? Since there is not a 4 there

Answer 6

Most likely, I'm not very good at this stuff but, that page is what referred to for these type of problems.

Answer 7

Ok, Im not good at this stuff either :) & yeah thats what I understood from the link you gave me

Answer 8

Could you help me on another one?

Answer 9

Sorry I'm out of time

Answer 10

Aw ok thanks so much for your time and your help :)